Grinding-mill.



F. ANSLEY. GRlNDING MILL.,

APPucATmN FILED 1AN.14,1915.

Patented July 20, '1915 2 SHEETS-SHEET Munn/mo abbo/mwa www RANSLEY. GRINDING MIL..

APPLlCATiON FILED .IAN-14, 1971.5.

Patented July 20', 1915.

2r SHEETS-SHEET 2- ture.

, treuren sfraans ra Nr onirica.

FRANK ANSLEY, or sPoKANE, WASHINGTON.

suriname-MILL Specification of Letters Patent Patented? Juiy 2c, i915.

Application led January 14, 1915. Serial No.' 2,273.

.To @ZZ wh'mi't 'it may concern.'

Be it known that I, FRANK ANSLEY, a citizen of the United States of America, residing at Spokane. in the county of Spokane and Statev of'VVashington, have in- -ventedcertain new and useful Improvements in Grinding-Mills, of which the following is a specification.

This invention relates to improvements in grinding mills andhas for its obj ect to providea mill which shall render a maximum consume aI minimum amount of power.

. A. further object is to provide a portable mili which shall be easily taken apart and set up and yet be inexpensive to manufac- A special novel feature of the invention .consists in so arranging the grinding mediums and so disposing the ore to be ground that the mill will be much more effective in vits grinding efficiency than `the mills now in use.

A further novel feature consists in so constructing'tl'ie inill that such parts of it as will receive the greatest amount of wear' -inay be easily and readily replaced.

A furtliei'novel feature consists in so ar ranging the outlet screens that they will redeposit upon the grinding elements such ore as has not been screened out.

Other features of novelty will be more fully described in connection with the accompanying dra-wings, and will be more particularly pointed out in and by the appended claims.

lnthe drawing, Figure 1, is a section on line 11`- .of Fig. 2, Fig. t2, is a section on l line 2-2lof Fig. 1, Fig. 3, is a section. on

line 3*-3 of Fig. l, Fig. 4 is a section on line of Fig. 1, Fig. 5, 'is an enlarged' section on line 55 of. Fig. 2, and Fig. 6, is

an' enlarged section on line 6 6 of Fig. 2. v Like characters of .reference designate similar parts throughout the different figures of the drawing.

A main shaft is suitably journaled at 11 and 12, and is provided with means by which it may be revolved, such as s rocket wheel 13. Two setsof spokes 14 an 15.,are cast integral with hubs 16 and 17, and these -constructed in twoA halves 39LA and 39h.

hubsl and 17 are split as at 18 and 19 in order to allow for their easy adjustment to the shaft 10. The split portions or hubs 16 and 17 may be-seciired together by bolts, such -as 20. Bolts 2O also serve to fix the hubs 16 and 17 rigidly on shaft 10. Rims 2l and 22 are secured to spokes 14 and 15 by such means as bolts 23, and also secured to the rim's 21 and 22 are flange rims 24 and and is fastened thereto by any suitable means. The major portion of drum 26 is corrugated on the surface 'as at 27 for the. purpose later described. A solid head 28 1faste-ned therein by-bolts or rivets 34. ln

the side plates 33 are cut holes 35 within which are snugly fitted endless tracks 36 of the general shape sliown'in the-drawiiigs. Tracks 36 are flanged as a.. 37, through which and the side plates 33 are bolts 3S. Tracks 36 will be preferably made of a wear resisting metal.

Within tracks'36 roll the double flanged rollers 39.which vwill now be described in detail. Referring more particularly to Fig. 5, it will be`seen that rollers 39 are A. ring 4Q, preferably corrugated or notched on its inside surface, as at 41, is set within rollers 39 and a flange 42 restino' in recess 43 provided in 39a serves to provi e a means for securing rin in place. Bolts 44 will hold 39a, 39" and 40 together. Flanges 45 and 46 on rollers 39 hold the rollers 39 within the tracks 36.

Grinding rods 47 are laid across the grinder as best shown in Fig. 1 and are so disposed that their ends 47@l and47b will lie within the rings 41. End caps 41x1 and 41b are bolted by means of bolts to plates 33 and llanges 37 and serve to hold the rods 47 from shifting laterally. An outer drum grinding mill.

is provided by bolting or riveting curved sheets of metal 4S to strips of angle liron a9,

which in turn are fastened, as at 50, to side plates 33. This feature is best illustrated in Fig. G. At suitable intervals the sheeting or outer drum 48 is omitted and screens 51 substituted. The screens 51 are stretched across suitable lugs 52 provided on thie plates at regular intervals and held in place by strips which are'secured to drum 48 by bolts 54. The screens 5l thus forni longitudinally arranged pockets 51h.

In grinding ore where it is necessary to use water, I have provided a novel means for introducing suclrwater. A water supply pipe is indicated at and a shut off valve at 56. A nipple 57 is threaded into the -end of shaft IO which is bored out for a short' length as indicated at 5S. Nipple 57 is connected to pipe by any form of connection as indicated at 59 which will permit of shaft 10 being revolved without interrupting the How of water from pipe into bore 5S.

Branches (l0 lead from bore 5S to a plurality ofiexible connections G1 which connect to pipes 'G2 which in turn are fastened to drum 26 by straps G3. Pipes G2 are perforated at (illto allow the water to pass out therethrough.

Referring now to rim Q4, it will be seen that a truncated conical drum'G is fastened thereto and that a feed pipe 66 passes through opening 67. A hopper 68 is provided foi' the reception of the ore and empties the pipe 66. A lead spiral 69 is mounted on shaft 70 and passes through the bottom of hopper .G8 and feed pipe 66. On

one end of shaft 70 is mounted a gear 71, which meshes with gear 72, which is mounted on the shaft 1 0. A

I will now describe the operation ofthe Y It will of course be understood that shaft l0v will be revolved by means of sprocket 13 and through the mediuin of spokes 14 and h ub 16 the drums 26 and 48 will be revolved. Ore will be admitted into hopper (S8v and the lead spiral 66 which is operated by gears 72 and 71 will feed the ore into the drum (35. The ore will then pass between the spokes 14 and drop through the slotsv 30 into the chamber 73 between drums 2G and 48. The head 28 will prevent the ore from entering inside of ,drum 26. The rods 47 which are loose in rings itOwill crunch and grind the ore due to theirv shifting movement and will tend to carry the unground ore upwardly. The

' corrugations 27 will also tend to carry the ore upwardly and throw it outwardly. As

the ore is carried upwardly the heavier and unground portion will continue to drop upon the sets of rods 4:7 which are at the bottom of the mill, thereby giving a further crushing action. As Va given ring 39 is. carried around the drinn 2G with the mill it will be continually rolling and the corrugation or notches -ll will be continually agitating the rods 47 by carrying them upwardly and dropping the one upon the other thus increasing the grinding action. As the rings reach the highest and lowest points in the revolution of the drums 26 and 48 they will drop or roll to the opposite end of the track 36 thereby dropping the sets of rods 47 sharply and thus deliver much crushing power. The ground ore will End itself thrown outwardly with considerable force to the screens 51 through which it will pass, but should any unground ore be caught in the pockets lb formed by screens 51 it will slide out when such screens reach the position 51 and drop directly upon rods 47a to be' regiouiid. I consider the-formation and location of the screens las an important part of my invention.

It will be seen that I not only utilize the grinding powerof the'rods 47 acting one on assembled.

It is believed that the operation and util-- ity of my invention will be fully understood fromthe foregoing description, and while I have herein shown and described one specific embodiment of my invention, I do not wish to be limited thereto except for such limitation asthe claims may impart.

lVhaL is claimed is, V

1'. In a grinding mill, an outer and an inner drum, there being a chamber formed between said drums, side plates to said outer druin closing the ends 'of said chamber having slots therein, hollow rollers mounted in said slots, grinding rods loosely laid in said hollow rollers, said rollers adapted to roll from one end of said slots to the other and said rods being adapted to tumble one on the other.

2. In a grinding mill, two drums mounted on one and the same shaft, one outside of the other and afdapted to rotate, there being an open space between said drums, the ends ofv the outer drum having openings therein,l

grinding rods longitudinally arranged and mounted in the said open space with their ends disposed within said. openings, means for carrying said rods, said means being freely movable in saidj openings and means for feeding material to be ground to thespace between said drums. l

3. In, agrnding mill, two drums mounted outer drum having arcuate slots in its in presence of two Witnesses.

, with their ends disposed within said arcu- Witnesses:

on one and the same shaft, one outside of and means for feeding unground rock to '10 the other -and adapted to rotate, there Vbeing the space between said drums. an open space between said drums, said In testimony whereof I alliX my signature heads jrindinfr rods longitudinally arrangeil :ind molnted in the said open space FRANK ANSLEY' ate slots, carriers for said r0ds,said carriers H. M. WILEY,

being freely movable in said arcuate slots L. L. WESTFALL. 

